Longitudinal protection scheme of distributed power distribution network based on M_T comprehensive similarity Article Swipe
Lingfeng Zhu
,
Zekun Shuai
,
Linfeng Yu
,
Zhengtian Li
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1088/1742-6596/2917/1/012017
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1088/1742-6596/2917/1/012017
To solve the problems of the rapid deterioration of the three-stage overcurrent protection performance after the extensive access of inverter distributed generators, the deterioration of the traditional longitudinal protection performance, and the problems of 0/0 calculation results and insufficient waveform difference measurement of the existing similarity protection algorithms, a longitudinal protection scheme based on M_T comprehensive similarity was proposed. Firstly, the transmission communication delay of the 5G core network is analyzed, and the mini-slot technology is proposed to effectively reduce the communication delay. Secondly, the M-K mutation initiation algorithm adapted to the characteristics of inverter DG faults was used to replace the traditional phase current mutation detection algorithm. The fault self-synchronization with higher precision was realized. Finally, M_T comprehensive similarity is constructed to describe the difference between the short-circuit current waveform of the system side and the inverter-distributed generator side. The changes in the similarity coefficient of faults in and out of the area are analyzed. A new principle of longitudinal protection based on the comprehensive similarity of M_T is formed. The simulation results show that the proposed new protection principle can reliably identify faults in and out of the area, will not have the anomaly of 0/0 of Pearson coefficient and cosine similarity calculation results, and has better anti-transition resistance ability than the Tanimoto similarity algorithm, which is fully suitable for distribution networks with distributed generators.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1088/1742-6596/2917/1/012017
- OA Status
- diamond
- Related Works
- 10
- OpenAlex ID
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https://openalex.org/W4405848570Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1088/1742-6596/2917/1/012017Digital Object Identifier
- Title
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Longitudinal protection scheme of distributed power distribution network based on M_T comprehensive similarityWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-12-01Full publication date if available
- Authors
-
Lingfeng Zhu, Zekun Shuai, Linfeng Yu, Zhengtian LiList of authors in order
- Landing page
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https://doi.org/10.1088/1742-6596/2917/1/012017Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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diamondOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1088/1742-6596/2917/1/012017Direct OA link when available
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Similarity (geometry), Distribution (mathematics), Scheme (mathematics), Computer science, Mathematics, Artificial intelligence, Mathematical analysis, Image (mathematics)Top concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
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10Other works algorithmically related by OpenAlex
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